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请问PHP算法,二维数组取出一维数组中id相同为几个新的二维数组

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Release: 2016-06-13 11:35:16
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请教PHP算法,二维数组取出一维数组中id相同为几个新的二维数组。
小弟刚学PHP不久,遇到了一个问题,请教大侠们,谢谢!

二维数组如下;
$arr = array(
array('id'=>100,'value'=>100),
array('id'=>100,'value'=>130,
array('id'=>100,'value'=>140),
array('id'=>100,'value'=>150),
array('id'=>101,'value'=>1600),
array('id'=>101,'value'=>100),
array('id'=>102,'value'=>100),
array('id'=>102,'value'=>100),
array('id'=>102,'value'=>100),
array('id'=>103,'value'=>100),
array('id'=>103,'value'=>100),
array('id'=>104,'value'=>100),
array('id'=>104,'value'=>100),
array('id'=>104,'value'=>100),
array('id'=>105,'value'=>100)
);


如何拆分成下面5个二维数组:
arr1(
                array('id'=>100,'value'=>100),
array('id'=>100,'value'=>130,
array('id'=>100,'value'=>140),
array('id'=>100,'value'=>150)
);

arr2(
array('id'=>101,'value'=>1600),
array('id'=>101,'value'=>100)
);

arr3(
array('id'=>102,'value'=>100),
array('id'=>102,'value'=>100),
array('id'=>102,'value'=>100)
);

arr4(
array('id'=>103,'value'=>100),
array('id'=>103,'value'=>100)

);

arr5(
array('id'=>104,'value'=>100),
array('id'=>104,'value'=>100),
array('id'=>104,'value'=>100),
array('id'=>105,'value'=>100)
);

arr5(
array('id'=>105,'value'=>100)
);

PHP 二维数组 算法
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